An iron bar at 325 K is placed in a sample of water. The iron bar gains energy from the water if the temperature of the water is

(1) 65 K (3) 65°C

(2) 45 K (4) 45°C

What is the correct name for a compound with two copper atoms and one oxygen atom? copper (I) oxide copper (1) oxide copper (2) oxide copper (II) oxide

The direct transfer of heat from one substance to another substance that it is touching is called

How does the use of synthetic oil impact the natural resource from which they are derived?

Which item is made from a basic ingredient? A) Soda B) Wine C) Leafy vegetables D) Toothpaste

Which of the following would have a mass of about 1 gram? A. a small car B. a large beetle C. a small poodle D. a large bottle of water

How can hypothesis best be tested

Write a balanced equation for the combustion of 1 mol of C4H10O (l). Express your answer as a chemical equation. Identify all of the phases in your answer.

A thermonuclear chain reaction is considered to be a: -sustaining reaction in which the products cause new reactions fusion reaction because new material is combined many times }common phenomenon for all unstable uranium atoms proton creation

Which atoms are most likely to form covalent bonds?

Which phrase is the best description of weathering? A-Compacting Rocks B-Cementing Rocks Together C-Crystallizing to form minerals D-Breaking Rocks into fragments by physical or chemical means